581405

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{31}}^2$

素因数の和:89

約数の個数: 18

約数和(自身を含む): 792414

約数和(自身を除く): 211009

約数列:

[1, 5, 11, 31, 55, 121, 155, 341, 605, 961, 1705, 3751, 4805, 10571, 18755, 52855, 116281, 581405]

約数ペア:

[(1, 581405), (5, 116281), (11, 52855), (31, 18755), (55, 10571), (121, 4805), (155, 3751), (341, 1705), (605, 961)]